zero windage

zero-zero landing

zero-zero weather

windage setting

click adjustment for windage

clicks of windage

windage adjustment of mount

windage arc

windage graduation

windage scale

windage screw

windage screw collar

windage screw knob

windage

windage knob

rear-sight windage scale

rear-sight windage screw knob

battlesight zero (BZO)

ground zero (GZ)

vision nil (zero)

zero elevation

zero in on

zero shot

zero tolerance

zero visibility

zero zone

zero-in

zero dark thirty

zero lead homing

actual zero of sight

zero degree angle

zero in

zero in on intelligence assets